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A solid with a regular repeating arrangement is:

• 1 A gas
• 2 A colloid
• 3 Crystalline
• 4 Amorphous

Glass is an example of an:

• 1 Molecular crystal
• 2 Amorphous solid
• 3 Ionic crystal
• 4 Metallic crystal

Diamond and graphite are:

• 1 Isotopes
• 2 Isomers
• 3 Allotropes of carbon
• 4 Compounds

Metals conduct electricity because of:

• 1 Covalent bonds
• 2 Free electrons
• 3 Ions in a lattice only
• 4 Hydrogen bonds

Sodium chloride has a:

• 1 Metallic structure
• 2 Simple molecular structure
• 3 Network covalent structure
• 4 Face centred cubic arrangement of ions